Falcon 4188 Product Data - page 6
6
OPEN-CIRCUIT SENSITIVITY (250 Hz):
–26 dB
±
1.5 dB re 1 V/Pa, 50 mV/Pa
*
POLARIZATION VOLTAGE (external): 200 V
FREQUENCY RESPONSE*:
0
°
incidence free-field response:
±
1 dB, 5 Hz to 10 kHz
±
2 dB, 3.15 Hz to 20 kHz
In accordance with IEC 651, Type 0 and Type 1
LOWER LIMITING FREQUENCY (–3 dB):
1 Hz to 2 Hz (vent exposed to sound)
PRESSURE EQUALIZATION VENT:
Rear vented
DIAPHRAGM RESONANCE FREQUENCY:
14 kHz (90
°
phase shift)
CAPACITANCE (POLARIZED, 250 Hz)*: 16 pF
EQUIVALENT AIR VOLUME (101.3 kPa):
46 mm
3
CALIBRATOR LOAD VOLUME (250 Hz):
250 mm
3
PISTONPHONE TYPE 4228 CORRECTION
(with DP 0776): 0.00 dB
* Individually calibrated
CARTRIDGE THERMAL NOISE:
14.6 dB (A), 15.3 dB (Lin.)
UPPER LIMIT OF DYNAMIC RANGE (3%
distortion): >148 dB SPL
MAXIMUM SOUND PRESSURE LEVEL:
159 dB (peak)
Environmental
OPERATING TEMPERATURE RANGE:
–30 to +150
°
C (–22 to +302
°
F)
OPERATING HUMIDITY RANGE:
0 to 100 % RH (without condensation)
STORAGE TEMPERATURE:
–30 to +70
°
C (–22 to 158
°
F)
Data Disk: 5 to 50
°
C (41 to +122
°
F)
TEMPERATURE COEFFICIENT (250 Hz):
–0.007 dB/
°
C (for the range –10 to +50
°
C (14
to 122
°
F))
PRESSURE COEFFICIENT (250 Hz):
–0.010 dB/kPa
INFLUENCE OF HUMIDITY:
<0.1 dB/ 100 %RH
VIBRATION SENSITIVITY (<1000 Hz):
62.5 dB equivalent SPL for 1 m/s
2
axial acceler-
ation
MAGNETIC FIELD SENSITIVITY:
4 dB SPL for 80 A/m, 50 Hz field
ESTIMATED LONG-TERM STABILITY:
>1000 years/dB at 20
°
C (68
°
F)
>100 hours/dB at 150
°
C (302
°
F)
Dimensions
Diameter: 13.2 mm (0.52
″
) (with grid)
12.7 mm (0.50
″
) (without grid)
Height:
17.6 mm (0.69
″
) (with grid)
16.3 mm (0.64
″
) (without grid)
Thread for preamplifier mounting:
11.7 mm – 60 UNS
Note: All values are typical at 23
°
C (73.4
°
F
)
101.3 kPa and 50% RH, unless measurement
uncertainty or tolerance field is specified. All un-
certainty values are specified at 2
σ
(i.e. expand-
ed uncertainty using a coverage factor of 2)
Specifications 4190
OPEN-CIRCUIT SENSITIVITY (250 Hz):
–38 dB
±
1.5 dB re 1 V/Pa, 12.5 mV/Pa
*
POLARIZATION VOLTAGE (external): 200 V
FREQUENCY RESPONSE*:
0
°
incidence free-field response:
5 Hz to 16 kHz
±
1 dB
3.15 Hz to 40 kHz
±
2 dB
In accordance with IEC 651, Type 0, Type 1 and
ANSI S1.12, Type M
LOWER LIMITING FREQUENCY (–3 dB):
1 Hz to 2 Hz (vent exposed to sound)
PRESSURE EQUALIZATION VENT:
Side vented
DIAPHRAGM RESONANCE FREQUENCY:
34 kHz (90
°
phase shift)
CAPACITANCE (POLARIZED, 250 Hz)*: 18 pF
EQUIVALENT AIR VOLUME (101.3 kPa):
11.6 mm
3
CALIBRATOR LOAD VOLUME (250 Hz):
190 mm
3
PISTONPHONE TYPE 4228 CORRECTION
(with DP 0776): +0.02 dB
* Individually calibrated
CARTRIDGE THERMAL NOISE:
20.0 dB (A), 21.4 dB (Lin.)
UPPER LIMIT OF DYNAMIC RANGE (3%
distortion): >162 dB SPL
MAXIMUM SOUND PRESSURE LEVEL:
171 dB (peak)
Environmental
OPERATING TEMPERATURE RANGE:
–30 to +150
°
C (–22 to 302
°
F)
(can be used up to +300
°
C (572
°
F), but with a
permanent sensitivity change of typically +0.4 dB
which stabilises after one hour)
OPERATING HUMIDITY RANGE:
0 to 100 % RH (without condensation)
STORAGE TEMPERATURE:
–30 to +70
°
C (–22 to 158
°
F)
Data Disk: 5 to 50
°
C (41 to +122
°
F)
TEMPERATURE COEFFICIENT (250 Hz):
–0.002 dB/
°
C (for the range –10 to +50
°
C (14
to 122
°
F))
PRESSURE COEFFICIENT (250 Hz):
–0.007 dB/kPa
INFLUENCE OF HUMIDITY: <0.1 dB/100 %RH
VIBRATION SENSITIVITY (<1000 Hz):
65.5 dB equivalent SPL for 1 m/s
2
axial acceler-
ation
MAGNETIC FIELD SENSITIVITY:
16 dB SPL for 80 A/m, 50 Hz field
ESTIMATED LONG-TERM STABILITY:
>1000 years/dB at 20
°
C (68
°
F)
>100 hours/dB at 150
°
C (302
°
F)
Dimensions
Diameter: 13.2 mm (0.52
″
) (with grid)
12.7 mm (0.50
″
) (without grid)
Height:
13.5 mm (0.53
″
) (with grid)
12.6 mm (0.50
″
) (without grid)
Thread for preamplifier mounting:
11.7 mm – 60 UNS
Note: All values are typical at 23
°
C (73.4
°
F
)
101.3 kPa and 50% RH, unless measurement
uncertainty or tolerance field is specified. All un-
certainty values are specified at 2
σ
(i.e. expand-
ed uncertainty using a coverage factor of 2)
Specifications 4191
Ordering Information 4190
Type 4190
Free-field
1
/
2
″
Microphone
Includes the following accessories:
BC 0225:
Calibration Chart
*
BC 5002:
Microphone-data Disk*
*
Quote mic. serial number when re-ordering
Optional Accessories
Type 2669:
1
/
2
″
Microphone Preamplifier
Type 4231:
Sound Level Calibrator
Type 4226:
Multifunction Acoustic Calibrator
Type 4228:
Pistonphone
UA 0308:
Dehumidifier
UA 0254:
Set of 6 Windscreens (UA 0237),
90 mm (3.5
″
)
UA 0469:
Set of 6 Windscreens (UA 0459),
65 mm (2.6
″
)
BA 5105:
Microphone Handbook
Ordering Information 4191
Type 4191
Free-field
1
/
2
″
Microphone
Includes the following accessories:
BC 0226:
Calibration Chart
*
BC 5002:
Microphone-data Disk*
*
Quote mic. serial number when re-ordering
Optional Accessories
Type 2669:
1
/
2
″
Microphone Preamplifier
Type 4231:
Sound Level Calibrator
Type 4226:
Multifunction Acoustic Calibrator
Type 4228:
Pistonphone
UA 0254:
Set of 6 Windscreens (UA 237),
90 mm (3.5
″
)
UA 0469:
Set of 6 Windscreens (UA 0459),
65 mm (2.6
″
)
BA 5105:
Microphone Handbook